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Technical Articles for Part Number CCA-K12-411-8
COMP Cams Xtreme Energy 4x4 Cam and Lifter Kits
Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 260/264, Lift .474/.474, Chevy, 5.0/5.7L
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K12-411-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K12-411-8
UPC:
036584041207
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
1,200-5,200
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
210
Exhaust Duration at 050 inch Lift:
214
Duration at 050 inch Lift:
210 int./214 exh.
Advertised Intake Duration:
260
Advertised Exhaust Duration:
264
Advertised Duration:
260 int./264 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.474 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.474 in.
Valve Lift with Factory Rocker Arm Ratio:
0.474 int./0.474 exh.
Lobe Separation (degrees):
111
Grind Number:
X4260HR
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic roller
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.254 in.
Retainers Included:
Yes
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
Yes
Timing Chain Style:
Double roller
Assembly Lubricant Included:
No
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
No
Quantity:
Sold as a kit.
COMP Cams Xtreme Energy 4x4 Cam and Lifter Kits
COMP Cams Xtreme Energy 4x4 cam and lifter kits are built to take advantage of the latest cam technology to provide maximum performance and low-end torque for your vehicle. Whether your use is off-roading or towing, there is an Xtreme 4x4 for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers, while delivering increased engine vacuum.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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